public override void OnInspectorGUI()
{
PlaneUsageExample plane = (PlaneUsageExample)target;
source = (GameObject)EditorGUILayout.ObjectField(source, typeof(GameObject), true);
if (source == null)
{
EditorGUILayout.LabelField("Add a GameObject to Slice.");
return;
}
if (!source.activeInHierarchy)
{
EditorGUILayout.LabelField("Object is Hidden. Cannot Slice.");
return;
}
if (source.GetComponent <MeshFilter>() == null)
{
EditorGUILayout.LabelField("GameObject must have a MeshFilter.");
return;
}
crossMat = (Material)EditorGUILayout.ObjectField(crossMat, typeof(Material), true);
recursiveSlice = (bool)EditorGUILayout.Toggle("Recursive Slice", recursiveSlice);
if (GUILayout.Button("Cut Object"))
{
// only slice the parent object
if (!recursiveSlice)
{
SlicedHull hull = plane.SliceObject(source);
if (hull != null)
{
hull.CreateLowerHull(source, crossMat);
hull.CreateUpperHull(source, crossMat);
source.SetActive(false);
}
}
else
{
// in here we slice both the parent and all child objects
SliceObjectRecursive(plane, source);
source.SetActive(false);
}
}
}
private void OnCollisionEnter(Collision collision)
{
// only cut with cloned scissor object that follows the original but isn't attached to the hand
if (collision.gameObject.tag.Equals("Scissors") && collision.gameObject.name.Contains("Clone"))
{
Destroy(this.gameObject.GetComponent <ResetDroppedObject>());
GameObject cutPlane = collision.gameObject.transform.Find(CUT_PLANE).gameObject;
PlaneUsageExample planeExample = cutPlane.GetComponent <PlaneUsageExample>();
Mesh objectMesh = this.gameObject.GetComponent <MeshFilter>().sharedMesh;
Material originalMaterial = this.gameObject.GetComponent <SetCoralPieceOriginalMaterial>().originalMaterial;
// only cut the object if it has enough triangles
if (objectMesh.triangles.Length > numTriangles)
{
SlicedHull hull = planeExample.SliceObject(this.gameObject, null);
if (hull != null)
{
// only create the cut pieces if they have enough triangles
if (hull.upperHull.triangles.Length > numTriangles && hull.lowerHull.triangles.Length > numTriangles)
{
GameObject piece = hull.CreateUpperHull(this.gameObject, originalMaterial);
// remove 2nd and 3rd hover event from coral piece
this.gameObject.GetComponent <InteractableHoverEvents>().onAttachedToHand.RemoveAllListeners();
this.gameObject.GetComponent <InteractableHoverEvents>().onDetachedFromHand.RemoveAllListeners();
// create clone for the piece no longer attached to the hand
GameObject coralClone = Instantiate(this.gameObject);
coralClone.transform.position = this.gameObject.transform.position;
// set that clones mesh to the upper hull mesh
coralClone.GetComponent <MeshFilter>().sharedMesh = piece.GetComponent <MeshFilter>().sharedMesh;
coralClone.GetComponent <MeshFilter>().mesh = piece.GetComponent <MeshFilter>().mesh;
coralClone.GetComponent <MeshRenderer>().materials = piece.GetComponent <MeshRenderer>().materials;
// destroy object made by ezy slice
Destroy(piece);
Destroy(coralClone.GetComponent <BoxCollider>());
// add collider and rigid body to new cut piece not attached to hand
coralClone.AddComponent <BoxCollider>();
coralClone.GetComponent <Rigidbody>().isKinematic = false;
coralClone.GetComponent <Rigidbody>().useGravity = true;
GameObject piece2 = hull.CreateLowerHull(this.gameObject, originalMaterial);
// set original game object mesh to the lowerhull
this.gameObject.GetComponent <MeshFilter>().sharedMesh = piece2.GetComponent <MeshFilter>().sharedMesh;
this.gameObject.GetComponent <MeshFilter>().mesh = piece2.GetComponent <MeshFilter>().mesh;
this.gameObject.GetComponent <MeshRenderer>().materials = piece2.GetComponent <MeshRenderer>().materials;
// destroy object made by ezy slice
Destroy(piece2);
// recreate box collider to fit new mesh
Destroy(this.gameObject.GetComponent <BoxCollider>());
this.gameObject.AddComponent <BoxCollider>();
}
}
}
Destroy(collision.gameObject);
}
}
/**
* This function will recursively slice the provided object and all it's children.
* Returns a list of SlicedHull objects which represents the cuts for the object
* and all its children (if any)
*/
public GameObject[] SliceObjectRecursive(PlaneUsageExample plane, GameObject obj)
{
// finally slice the requested object and return
SlicedHull finalHull = plane.SliceObject(obj);
if (finalHull != null)
{
GameObject lowerParent = finalHull.CreateLowerHull(obj, crossMat);
GameObject upperParent = finalHull.CreateUpperHull(obj, crossMat);
if (obj.transform.childCount > 0)
{
foreach (Transform child in obj.transform)
{
if (child != null && child.gameObject != null)
{
// if the child has chilren, we need to recurse deeper
if (child.childCount > 0)
{
GameObject[] children = SliceObjectRecursive(plane, child.gameObject);
if (children != null)
{
// add the lower hull of the child if available
if (children[0] != null && lowerParent != null)
{
children[0].transform.SetParent(lowerParent.transform, false);
}
// add the upper hull of this child if available
if (children[1] != null && upperParent != null)
{
children[1].transform.SetParent(upperParent.transform, false);
}
}
}
else
{
// otherwise, just slice the child object
SlicedHull hull = plane.SliceObject(child.gameObject);
if (hull != null)
{
GameObject childLowerHull = hull.CreateLowerHull(child.gameObject, crossMat);
GameObject childUpperHull = hull.CreateUpperHull(child.gameObject, crossMat);
// add the lower hull of the child if available
if (childLowerHull != null && lowerParent != null)
{
childLowerHull.transform.SetParent(lowerParent.transform, false);
}
// add the upper hull of the child if available
if (childUpperHull != null && upperParent != null)
{
childUpperHull.transform.SetParent(upperParent.transform, false);
}
}
}
}
}
}
return(new GameObject[] { lowerParent, upperParent });
}
return(null);
}
